WIKA · Pressure measurement · Family 990
Diaphragm Seals
Diaphragm seal with flange connection for pulp and paper industry applications
Range
0…40 bar
EACCRNMTSCHS
Price
On request
Depends on configuration
Description
Diaphragm seals are used for the protection of pressure measuring instruments in applications with difficult media. In diaphragm seal systems, the diaphragm of the diaphragm seal effects the separation of the instrument and the medium. The pressure is transmitted to the measuring instrument via the system fill fluid which is inside the diaphragm seal system.
For the implementation of demanding customer applications, there are a wide variety of designs, materials and system fill fluids available.
For further technical information on diaphragm seals and diaphragm seal systems see IN 00.06 'Application, operating principle, designs'.
Special features
- Rotatable retainer flange
- Versions with 90° pipe elbow and vibration damper
Configurator · Step by step
Build a H990.23 for your task
The article number is assembled automatically. If unsure — ask an engineer; we'll match the line's parameters.
Step 1 of 5
Your configuration
- Nominal pressure ratingPN 40
- Upper body material / main body material—
- Diaphragm material—
- Extension length—
- Gasket—
- Fastening partsRetainer flange in stainless steel
- welding stud—
- Additional ordering informationWithout
AI suggestion by parameters
Finish your configuration
Select every option to submit the request.
Identification
| Model | 990.23 |
| Product family | 990 |
| Subcategory | Diaphragm seal |
Measuring range
| Pressure ranges | 0…0.6 bar · 0…40 bar · 0…8.7 psi · 0…580 psi |
Process conditions
| Process temperature | ≤ +400 °C |
Materials
| Case material | Stainless steel 1.4404 (316L), Stainless steel 1.4435 (316L), Stainless steel 1.4541 (321), Stainless steel 1.4571 (316Ti), Duplex 2205 (1.4462), Monel 400 (2.4360) |
| Wetted parts material | PFA (perfluoroalkoxy) coating, antistatic, ECTFE coating, Stainless steel 1.4435 (316L), Stainless steel 1.4541 (321), Stainless steel 1.4571 (316Ti), Duplex 2205 (1.4462), Monel 400 (2.4360), Stainless steel 1.4404 / 1.4435 (316L), Ceramic coating wikaramic®, PFA (perfluoroalkoxy) coating, FDA, Ceramic coating, wikaramic PFA (perfluoroalkoxy) coating, FDA, Stainless steel 1.4404 (316L) |
| Sealing material | Perbunan |
Certifications and approvals
| Certifications | EACCRNMTSCHS |
Additional details
| Datasheet languages | EN |
Tables from datasheet
| Model 990.23 | Standard | Option |
|---|---|---|
| Pressure range | 0 ... 0.6 to 0 ... 40 bar (0 ... 8.7 to 0 ... 580 psi) | |
| Level of cleanliness of wetted parts | Oil and grease free per ASTM G93-03 level F WIKA standard (< 1,000 mg/m²) | ■ Oil and grease free per ASTM G93-03 level D and ISO 15001 (< 220 mg/m 2 ) ■ Oil and grease free per ASTM G93-03 level C and ISO 15001 (< 66 mg/m²) |
| Origin of wetted parts | International | EU, CH, USA |
| Extension length | 6.5 mm(0.256 in) | 17 mm(0.669 in) |
| Connection to the measuring instrument | Axial weld-in connection | Axial weld-in connection with G½, G1/4, ½NPTor 1/4 NPT (female) |
| Type of mounting | Direct mounting | ■ 90° pipe elbow, rotatable through 180° ■ 90° pipe elbow, fixed ■ 90° pipe elbow and vibration damper, rotatable through 180° ■ 90° pipe elbow and vibration damper, fixed ■ Capillary ■ Cooling element |
| Retainer flange | Stainless steel | - |
| Accessories | - | ■ Welding socket for integration into the process line, see data sheet AC 09.20 ■ Perbunan sealing |
| Upper body of diaphragm seal | Wetted parts | Maximum permissible process temperature ¹⁾ in °C (°F) |
|---|---|---|
| Stainless steel 1.4404 (316L) | Stainless steel 1.4404 / 1.4435 (316L), standard version | 400 (752) |
| Ceramic coating wikaramic ® | ||
| PFA (perfluoroalkoxy) coating, FDA | 260 (500) | |
| PFA (perfluoroalkoxy) coating, antistatic | ||
| ECTFE coating | 150 (302) | |
| Stainless steel 1.4435 (316L) | Stainless steel 1.4435 (316L) | 400 (752) |
| Stainless steel 1.4541 (321) | Stainless steel 1.4541 (321) | |
| Stainless steel 1.4571 (316Ti) | Stainless steel 1.4571 (316Ti) | |
| Duplex 2205 (1.4462) | Duplex 2205 (1.4462) | 300 (572) |
| Monel 400 (2.4360) | Monel 400 (2.4360) | 400 (752) |
| NS | H |
|---|---|
| 63 (2.48) | 120 (4.724) |
| 100 (3.937) | 140 (5.512) |
| 160 (6.299) | 170 (6.693) |
| Dimensions | in mm(in) |
|---|---|
| NS | H |
| 63 (2.48) | 145 (5.709) |
| 100 (3.937) | 165 (6.496) |
| 160 (6.299) | 195 (7.677) |
View all (9)
| Dimensions | in mm(in) |
|---|---|
| NS | H |
| 63 (2.48) | 142 (5.591) |
| 100 (3.937) | 162 (6.378) |
| 160 (6.299) | 192 (7.559) |
| Logo | Description | Country |
|---|---|---|
| EAC (option) Pressure equipment directive | Eurasian Economic Community | |
| - | CRN Safety (e.g. electr. safety, overpressure, ...) | Canada |
| - | MTSCHS (option) Permission for commissioning | Kazakhstan |
| Material | Unified numbering system (UNS) |
|---|---|
| Stainless steel 316L (1.4404 or 1.4435) | S31603 |
| Stainless steel 904L (1.4539) | N08904 |
| Stainless steel 321 (1.4541) | S32100 |
| Stainless steel 316Ti (1.4571) | S31635 |
| Stainless steel 1.4466 (urea grade) | S31050 |
| Duplex 2205 (1.4462) | S31803 |
| Superduplex 1.4410 | S32750 |
| Tantalum (also lining) | R05200 |
| Hastelloy C276 (2.4819) | N01276 |
| Hastelloy C22 (2.4602) | N06022 |
| Inconel 600 (2.4816) | N06600 |
| Incoloy 825 (2.4858) | N08825 |
| Inconel 625 (2.485) | N06625 |
| Monel 400 (2.4360) | N04400 |
| Nickel 200 (2.4066) | N02200 |
| Nickel 201 (2.4068) | N02201 |
| Titanium 3.7035 (class 2) | R50400 |
| Titanium 3.7235 (class 7) | R52400 |
| Zirconium GR702 | R60702 |
| Designation | Identi- fication number | Solidi- fication point | Boiling/ degradation point | Density at 25 °C | Kin.Viscosity at 25 °C | Remark |
|---|---|---|---|---|---|---|
| KN | °C | °C | g/cm³ | cSt | ||
| Silicone oil | 2 | -45 | +300 | 0.96 | 54.5 | Universal application |
| Glycerine | 7 | -35 | +240 | 1.26 | 759.6 | FDA 21 CFR 182.1320 |
| Silicone oil | 17 | -90 | +200 | 0.92 | 4.4 | Low temperatures |
| Halocarbon | 21 | -60 | +175 | 1.89 | 10.6 | Oxygen 1) and chlorine |
| Methylcyclopentane | 30 | -130 | +60 | 0.74 | 0.7 | For very low temperatures |
| High-temperature silicone oil | 32 | -25 | +400 | 1.06 | 47.1 | For high temperatures |
| Neobee® M-20 | 59 | -35 | +260 | 0.92 | 10.0 | FDA 21 CFR 172.856, 21 CFR 174.5 |
| DI water | 64 | +4 | +85 | 1.00 | 0.9 | For ultrapure media |
| Silicone oil | 68 | -75 | +250 | 0.93 | 10.3 | |
| DI water/propanol mixture | 75 | -30 | +60 | 0.92 | 3.6 | For ultrapure media |
| Medicinal white mineral oil | 92 | -15 | +260 | 0.85 | 45.3 | FDA 21 CFR 172.878, 21 CFR 178.3620(a); USP, EP, SP |
| Maximum temperature | Maximum oxygen pressure |
|---|---|
| to 60 °C | 50 bar |
| > 60 °C to 100 °C | 30 bar |
| > 100 °C to 175 °C | 25 bar |
Application areas not described yet
Describe your operating conditions — our engineer will suggest a model and use case.
Couldn't find the answer in the documentation? An engineer will reply within a business day.
Ask an engineer →All variants · Article table
48 standard articles of family 990
If you know the code — pick directly. If not — use the configurator in mode “01”.
Stock:
SKUConfigurationPriceStockAction
H990.23-D4C1C2006ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C1 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C1C2006ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C1 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C1C2006HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C1 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C1C2006HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C1 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C1C2017ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C1 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C1C2017ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C1 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C1C2017HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C1 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C1C2017HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C1 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C2C2006ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C2 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C2C2006ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C2 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C2C2006HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C2 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C2C2006HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C2 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C2C2017ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C2 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C2C2017ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C2 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C2C2017HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C2 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C2C2017HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C2 · Diaphragm material: C2+ 5 moreOn requestOn orderRequest →
H990.23-D4C3C3006ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C3 · Diaphragm material: C3+ 5 moreOn requestOn orderRequest →
H990.23-D4C3C3006ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C3 · Diaphragm material: C3+ 5 moreOn requestOn orderRequest →
H990.23-D4C3C3006HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C3 · Diaphragm material: C3+ 5 moreOn requestOn orderRequest →
H990.23-D4C3C3006HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C3 · Diaphragm material: C3+ 5 moreOn requestOn orderRequest →
H990.23-D4C3C3017ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C3 · Diaphragm material: C3+ 5 moreOn requestOn orderRequest →
H990.23-D4C3C3017ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C3 · Diaphragm material: C3+ 5 moreOn requestOn orderRequest →
H990.23-D4C3C3017HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C3 · Diaphragm material: C3+ 5 moreOn requestOn orderRequest →
H990.23-D4C3C3017HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C3 · Diaphragm material: C3+ 5 moreOn requestOn orderRequest →
H990.23-D4C4C4006ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C4 · Diaphragm material: C4+ 5 moreOn requestOn orderRequest →
H990.23-D4C4C4006ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C4 · Diaphragm material: C4+ 5 moreOn requestOn orderRequest →
H990.23-D4C4C4006HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C4 · Diaphragm material: C4+ 5 moreOn requestOn orderRequest →
H990.23-D4C4C4006HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C4 · Diaphragm material: C4+ 5 moreOn requestOn orderRequest →
H990.23-D4C4C4017ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C4 · Diaphragm material: C4+ 5 moreOn requestOn orderRequest →
H990.23-D4C4C4017ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C4 · Diaphragm material: C4+ 5 moreOn requestOn orderRequest →
H990.23-D4C4C4017HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C4 · Diaphragm material: C4+ 5 moreOn requestOn orderRequest →
H990.23-D4C4C4017HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C4 · Diaphragm material: C4+ 5 moreOn requestOn orderRequest →
H990.23-D4C5C5006ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C5 · Diaphragm material: C5+ 5 moreOn requestOn orderRequest →
H990.23-D4C5C5006ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C5 · Diaphragm material: C5+ 5 moreOn requestOn orderRequest →
H990.23-D4C5C5006HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C5 · Diaphragm material: C5+ 5 moreOn requestOn orderRequest →
H990.23-D4C5C5006HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C5 · Diaphragm material: C5+ 5 moreOn requestOn orderRequest →
H990.23-D4C5C5017ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C5 · Diaphragm material: C5+ 5 moreOn requestOn orderRequest →
H990.23-D4C5C5017ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C5 · Diaphragm material: C5+ 5 moreOn requestOn orderRequest →
H990.23-D4C5C5017HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: C5 · Diaphragm material: C5+ 5 moreOn requestOn orderRequest →
H990.23-D4C5C5017HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: C5 · Diaphragm material: C5+ 5 moreOn requestOn orderRequest →
H990.23-D4D1D1006ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: D1 · Diaphragm material: D1+ 5 moreOn requestOn orderRequest →
H990.23-D4D1D1006ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: D1 · Diaphragm material: D1+ 5 moreOn requestOn orderRequest →
H990.23-D4D1D1006HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: D1 · Diaphragm material: D1+ 5 moreOn requestOn orderRequest →
H990.23-D4D1D1006HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: D1 · Diaphragm material: D1+ 5 moreOn requestOn orderRequest →
H990.23-D4D1D1017ZEZZZZZNominal pressure rating: D4 · Upper body material / main body material: D1 · Diaphragm material: D1+ 5 moreOn requestOn orderRequest →
H990.23-D4D1D1017ZEAZZZZNominal pressure rating: D4 · Upper body material / main body material: D1 · Diaphragm material: D1+ 5 moreOn requestOn orderRequest →
H990.23-D4D1D1017HEZZZZZNominal pressure rating: D4 · Upper body material / main body material: D1 · Diaphragm material: D1+ 5 moreOn requestOn orderRequest →
H990.23-D4D1D1017HEAZZZZNominal pressure rating: D4 · Upper body material / main body material: D1 · Diaphragm material: D1+ 5 moreOn requestOn orderRequest →
Showing 48 of 48. Price on request — an engineer will quote your configuration.